1 files changed, 28 insertions, 0 deletions
diff --git a/pylint/testutils/decorator.py b/pylint/testutils/decorator.py
new file mode 100644
index 000000000..44d186d1e
--- /dev/null
+++ b/pylint/testutils/decorator.py
@@ -0,0 +1,28 @@
+# Licensed under the GPL: https://www.gnu.org/licenses/old-licenses/gpl-2.0.html
+# For details: https://github.com/PyCQA/pylint/blob/main/LICENSE
+
+import functools
+
+from pylint.testutils.checker_test_case import CheckerTestCase
+
+
+def set_config(**kwargs):
+    """Decorator for setting config values on a checker.
+
+    Passing the args and kwargs back to the test function itself
+    allows this decorator to be used on parametrized test cases.
+    """
+
+    def _wrapper(fun):
+        @functools.wraps(fun)
+        def _forward(self, *args, **test_function_kwargs):
+            for key, value in kwargs.items():
+                setattr(self.checker.config, key, value)
+            if isinstance(self, CheckerTestCase):
+                # reopen checker in case, it may be interested in configuration change
+                self.checker.open()
+            fun(self, *args, **test_function_kwargs)
+
+        return _forward
+
+    return _wrapper